D-DayJune 6, 1944, is known most commonly by the term D-Day and refers to the landing of Allied forces on the beaches of Normandy, France. Troops staged one of the most pivotal attacks against Germany during World War II.The codename Operation Overlord became known as the beginning of the end of World War II. Following the Battle of Normandy along a 50 mile stretch of beaches, including Utah and Omaha Beach, the attack became known as D-Day. While many explanations exist for the name, one reason may be due to the military countdown. The countdown designated the day and hour of the assault. D represented Day and H represented Hour in the military. Let's pray for the militaries and for the well -being of their family's .